Showing structure for 21,25,26-trihydroxy-4,8,12,16,16-pentamethyl-27-(3,7,11,15-tetramethylhexadeca-2,6,10,14-tetraen-1-yl)-17,22-dioxapentacyclo[16.10.1.0¹,²¹.0¹⁵,¹⁹.0²³,²⁸]nonacosa-3,7,11,18,23(28),24,26-heptaene-20,29-dione